[MacPorts] #21046: Guide: mention using -append/-delete in 4.2 Creating a Portfile

[MacPorts]

#21046: Guide: mention using -append/-delete in 4.2 Creating a Portfile
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 Reporter:  ryandesign@…             |       Owner:  markd@…           
     Type:  enhancement              |      Status:  new               
 Priority:  Normal                   |   Milestone:                    
Component:  guide                    |     Version:                    
 Keywords:                           |        Port:                    
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Description changed by snc@…:

Old description:

> Jim Busser sent this Guide feedback to macports-mgr:
>
> {{{
> Under 4.2 Creating a Portfile > 14. Port dependencies
>
> where it says
>         A port's dependencies are ports that must be installed before
> another port is installed.
> and gives the example
>         depends_lib
> might it be worth cautioning to
>         see 5.3.2.1 (bullet 2) on preferred use of the -append, -delete
> keyword modifiers
> }}}
>
> This should be considered not only for the `depends_lib` example but also
> for the `configure.args` example and the `categories` example, since
> portgroups commonly define those.

New description:

 Jim Busser sent this Guide feedback to macports-mgr:

 Under 4.2 Creating a Portfile > 14. Port dependencies where it says
 {{{
 A port's dependencies are ports that must be installed before another port
 is installed.
 }}}
 and gives the example `depends_lib` might it be worth cautioning to see
 5.3.2.1 (bullet 2) on preferred use of the `-append`, `-delete` keyword
 modifiers

 This should be considered not only for the `depends_lib` example but also
 for the `configure.args` example and the `categories` example, since
 portgroups commonly define those.

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Ticket URL: <http://trac.macports.org/ticket/21046#comment:1>
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